4.4 Article

Relationships between saturated paste and 1:1 or 1:5 soil/water extract sodium adsorption ratios

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Environmental Sciences

The Effect of Soil Texture on the Conversion Factor of 1:5 Soil/Water Extract Electrical Conductivity (EC1:5) to Soil Saturated Paste Extract Electrical Conductivity (ECe)

George Kargas et al.

Summary: The electrical conductivity of soil saturated paste extract (ECe) is commonly used to estimate soil salinity, but this method is time consuming. This study investigates a new model that incorporates soil texture to calculate the conversion factor (CF) between EC1:5 and ECe, resulting in improved prediction of ECe.
Article Geosciences, Multidisciplinary

Estimation of exchangeable sodium percentage from sodium adsorption ratio of salt-affected soils using traditional and dilution extracts, saturation percentage, electrical conductivity, and generalized regression neural networks

Mamoun A. Gharaibeh et al.

Summary: Soil sodicity can be best evaluated using the exchangeable sodium percentage (ESP), but this can be time-consuming. Alternatively, the sodium adsorption ratio (SAR) is a simpler index commonly used for estimating soil sodicity. This study aimed to estimate ESP using four approaches, with the GRNN model providing the most accurate estimates and handling data heteroscedasticity effectively. Meanwhile, traditional dilution extracts showed a strong correlation between soil ESP and SAR, while the CF-theta(SP) approach performed better for predicting ESP. Additionally, EC1:5 gave reasonably accurate estimates of ESP and could be used as a screening test for sodicity assessment.

CATENA (2021)

Article Geosciences, Multidisciplinary

Estimation of saturated paste electrical conductivity using three modelling approaches: Traditional dilution extracts; saturation percentage and artificial neural networks

Mamoun A. Gharaibeh et al.

Summary: The research demonstrates a novel approach using neural networks to improve the accuracy of estimating ECe, incorporating location-specific parameters to handle heteroscedasticity in data. This approach outperformed traditional methods and showed promise for better management of agricultural soils. While the study used a specific location as a case study, the approach is generalizable to other locations.

CATENA (2021)

Article Environmental Sciences

Characterizing Salt-Affected Soils of Songnen Plain Using Saturated Paste and 1:5 Soil-to-Water Extraction Methods

Chun-Ming Chi et al.

ARID LAND RESEARCH AND MANAGEMENT (2010)

Article Soil Science

Soil salinity using saturated paste and 1:1 soil to water extracts

H Zhang et al.

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL (2005)